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5/23/2018 SIP Video
1/19
2007 Avaya Inc. All rights reserved.
SIP Videowith Communication Manager
Chris Kendall
5/23/2018 SIP Video
2/19
2007 Avaya Inc. All rights reserved.Avaya Proprietary
The addition of SIP to Avayas Video Telephony Solution provides theframework for the future of enterprise video conferencing
Leveraging existing IETF open standards
Ensuring higher levels of interoperability with third parties
Maintaining a sophisticated feature set that is consistent and
compatible with todays H.323 video solutionHighlights include:
H.323-SIP inter-working, with a common subset of telephony features
Call admission control and video enablement policies
Bandwidth management
Priority video callers Cumulative pools for audio and video
Call rate negotiation
Video Conferencing (scheduled and ad-hoc)
Overview Description
SIP Video
5/23/2018 SIP Video
3/19
2007 Avaya Inc. All rights reserved.Avaya Proprietary
Solution view
5/23/2018 SIP Video
4/19
2007 Avaya Inc. All rights reserved.Avaya Proprietary
Solution Components
CM is the
Feature server - extends many CM features to SIP phonesthru OPTIM architecture
Gatewayinterworks SIP to all other protocols (H.323, ISDN,DCP, analog, etc..)
Back-to-back user-agent (B2BUA)
SES contains the following components
Proxy
Registrar Event Server
Personal Profile Manager (PPM)
Location service (database)
5/23/2018 SIP Video
5/19
2007 Avaya Inc. All rights reserved.Avaya Proprietary
Solution Components (continued)Supported SIP Adjuncts
Modular Messaging
Voice Portal
Meeting Exchange (version 5 with Video)
Supported SIP Endpoints
Avaya SIP Softphone (AST)
46xx SIP
96xx SPARK phone (AST)
Toshiba SIP phone (AST)
One-X mobile edition (CHAMP)
Cisco and other third-party SIP phones
SIP Video phones NEW!
NEW!
5/23/2018 SIP Video
6/19
2007 Avaya Inc. All rights reserved.Avaya Proprietary
Meeting Exchange
Meeting Exchange is the existing large scale SIP conferencing platform
for CM
Version 5 supports video conferencing of up to 16 simultaneoususers.
Meet-me, scheduled and ad-hoc conferences may be used
Configured as a video-enabled trunk on CM Video-bridge configuration must be set for ad-hoc conferencing
5/23/2018 SIP Video
7/19 2007 Avaya Inc. All rights reserved.
Avaya Proprietary
SIP Video Phones
Most Polycom & Tandberg room systems are dual-protocol H.323 and
SIP Tandberg T150 (v4.1) has been tested extensively with CM in SIP
For presentations and collaboration, H.323 is still recommended
There are many third party SIP phones out in the market, especiallySoftphones that can be connected to SES
Some will work as OPTIM endpoints, i.e. CM-routed and otherswill not
Avayas next generation SIP Softphone (with video) is TBA
5/23/2018 SIP Video
8/19 2007 Avaya Inc. All rights reserved.
Avaya Proprietary
Jargon Buster
Lots of jargon and acronyms to digest SIP: Session Initiation Protocol
SDP: Session Description Protocol
Dialog: A conversation/communication
Session: Media (audio/video/data) between two entities
AST: Advanced SIP Telephony
SUSHI: Toshiba SIP Phone (supporting AST)
B2BUA: Back-to-Back User Agent
OPTIM/OPS: Off PBX/Premises Station
OATS: Origination And Termination Service
5/23/2018 SIP Video
9/19 2007 Avaya Inc. All rights reserved.
Avaya Proprietary
High-level Call-flow
Edge ProxySIP phone-A
NJ CM
SIP phone-B
DR Home Proxy NJ Home Proxy
DR CM
5/23/2018 SIP Video
10/19 2007 Avaya Inc. All rights reserved.
Avaya Proprietary
Why OPTIM?
Using OPTIM architecture, CM becomes a central point of control forvideo policy
BWM, CAC, video and conferencing capabilities
As a B2BUA, CM will modify the SDP to enforce these policies
Allow or deny video
Restrict call-ratesAllow/deny use of shared resources
As a SIP-H.323 gateway, CM bridges the protocol gap between differentusers and systems
Dont need to dial special addresses
Dont need to think about protocols or devices
Telephony features just work
Video is still as easy as making a phone call
5/23/2018 SIP Video
11/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
SIP H.323 Interoperability
CM places particular requirements on endpoints for H.323
interoperability:
RFC3890, for enterprise bandwidth management
SIP endpoints to present their full capabilities in the SDP
Supporting asymmetric SDP payload types is also required
Some SIP endpoints can be configured to support the functionalityrequired by CM
For example, In Counterpath Eyebeam (1.5) you can dial ***7469 toreveal a hidden config UI and set the following options:
Rtp:media:send_bandwidth_modifier = 1
Media:sdp:specify_all_codecs_in_offer_answer = 1
Media:sdp:force_describe_well_known_codecs = 1
5/23/2018 SIP Video
12/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
Solution Limitations
This release has some limitations with CM as the inter-workingSIP-H.323 gateway using video endpoints.
SIP video endpoints are not supported dialing into thePolycom MGC (either H.323 or SIP)
SIP video endpoints cannot view H.239 streams (e.g.Polycom People plus Content)
Polycom SIP firmware is not currently supported whenconfigured as an OPTIM endpoint
Multipoint SIP room systems are not supported with CM
Future releases aim to resolve these limitations
5/23/2018 SIP Video
13/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
SIP Priority Video Users
Priority video is not signaled over SIP trunks
So it works a bit differently
If Priority video is enabled and the SIP signaling group is terminating thecall:
The priority status of the originating caller is preserved
If Priority video is enabled and there is an incoming call on the SIPsignaling group:
The call gets promoted to priority
SIP sub-domains may therefore be used to separate priority users from
regular users [email protected]
mailto:[email protected]:[email protected]:[email protected]:[email protected]5/23/2018 SIP Video
14/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
SES Administration
SES Administration is effectively unchanged from existingSIP audio deployments.
Primary consideration is whether a user is mapped to amedia server extension (CM station) or not
Video calls are unmanaged when they are pure SIP anddo not route via CM.
Calling a H.323 user will still route the call through CM if themedia-server address maps are configured
This also holds true for calls involving OPTIM SIP users
5/23/2018 SIP Video
15/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
CM Admin Licensing
New Feature to be enabled in license file.
Multimedia IP SIP Trunking? (FEAT_MMIP_SIP)
Multimedia IP SIP Trunking? can then be enabled in customer options
5/23/2018 SIP Video
16/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
CM Admin SIP Video Trunk
Two new fields for video on the SIP signaling group.
IP Video and Priority Video
SIP trunk-group administration is unchanged
5/23/2018 SIP Video
17/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
CM Admin OPTIM stations
New set type 4620SIP should be used for all non-AST SIP endpoints
IP Video should be enabled, while IP Softphone should be disabled
5/23/2018 SIP Video
18/19 2007 Avaya Inc. All rights reserved.Avaya Proprietary
Common Problems
The call fails to connect when calling from a SIP endpoint If response is 403 forbidden (Denial 11), check COR/COS, ip-network-region domain
If response is 482 Loop detected, check dial plan (UDP/AAR/EXT)
If response is 488 Not acceptable, check audio codec is supported
I get no video when calling from a SIP endpoint Check licensing and capacities
Check signaling group, network-region and codec-set admin
Check station admin - ensure IP-direct audio enabled for station form page 2
Check bandwidth is available
Check endpoint enabled for video, and is offering bandwidth
Due to protocol complexity, SIP users will not get video dialing into the H.323 MGC via CM
My SIP endpoint wont register If response is 401 Unauthorized, check password
If response is 404 User not found, check username and domain are correct,
check that the SES configuration has been saved/updated
More items in the AVTS configuration checklist
5/23/2018 SIP Video
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Avaya Proprietary
References and Resources
SIP support in Communication Manager 4.0:
http://support.avaya.com/elmodocs2/sip/245206_7.pdf
Installing and administering SES:
http://support.avaya.com/elmodocs2/sip/03_600768_4.pdf
http://support.avaya.com/elmodocs2/sip/245206_7.pdfhttp://support.avaya.com/elmodocs2/sip/03_600768_4.pdfhttp://support.avaya.com/elmodocs2/sip/03_600768_4.pdfhttp://support.avaya.com/elmodocs2/sip/245206_7.pdf